but while the pope may be ste . >>> president obama delivered his last sunday bless -- pope benedict xvi delivered his last sunday blessing. from have itcon city with detail -- vatican city with details. >> reporter: he assured the 100,000 people in st. peters square he wasn't abandoning the church. he said he would continue to suv but in a way more suitable to my age and strength. pope benedict xvi goes into what he call as new life for prayer and meditation. >> in the name -- >> reporter: they claimed he encaged in inappropriate contact with him years ago. the scandals didn't worry her. >> it is in god's hands. >> reporter: he sympathized. >> how much control does the pope have over someone's actions. it is hard to hold a person responsible. >> reporter: the warm reception energized energized the pope who thanked god for the sunshine instead of the predicted rain. >> reporter: there is plenty of security. snipers are in position over looking the square and plane clothes policeman in the crowds. he will leave on thursday to spend the first two months of retirement. >> reporter: the